system/k3s: Added (Lightweight Kubernetes).

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>

7 files changed, 314 insertions, 0 deletions

diff --git a/system/k3s/README b/system/k3s/README
new file mode 100644
index 0000000000000..0a6cd3b56bfe7
--- /dev/null
+++ b/system/k3s/README
@@ -0,0 +1,18 @@
+k3s (Lightweight Kubernetes Distribution)
+
+k3s is a lightweight, fully compliant Kubernetes distribution designed
+for constrained environments such as edge computing, IoT devices, and
+development setups. Created by Rancher Labs, k3s aims to simplify the
+deployment and management of Kubernetes clusters.
+
+
+The following can be used to start/stop k3s automatically:
+/etc/rc.d/rc.k3s
+  if [ -x /etc/rc.d/rc.k3s ]; then
+    /etc/rc.d/rc.k3s start
+  fi
+
+/etc/rc.d/rc.local_shutdown
+  if [ -x /etc/rc.d/rc.k3s ]; then
+    /etc/rc.d/rc.k3s stop
+  fi
diff --git a/system/k3s/config/k3s.service.env b/system/k3s/config/k3s.service.env
new file mode 100644
index 0000000000000..3fb789499b691
--- /dev/null
+++ b/system/k3s/config/k3s.service.env
@@ -0,0 +1,10 @@
+# K3S_EXEC=
+# K3S_TOKEN=
+# K3S_AGENT_TOKEN=
+# K3S_CONFIG_FILE=/etc/rancher/k3s/config.yaml
+# K3S_TOKEN_FILE=/var/lib/rancher/k3s/server/token
+# K3S_AGENT_TOKEN_FILE=/var/lib/rancher/k3s/server/agent-token
+
+# HTTP_PROXY=http://your-proxy.example.com:8888
+# HTTPS_PROXY=http://your-proxy.example.com:8888
+# NO_PROXY=127.0.0.0/8,10.0.0.0/8,172.16.0.0/12,192.168.0.0/16
\ No newline at end of file
diff --git a/system/k3s/config/rc.k3s b/system/k3s/config/rc.k3s
new file mode 100644
index 0000000000000..3cfeed1b5c253
--- /dev/null
+++ b/system/k3s/config/rc.k3s
@@ -0,0 +1,139 @@
+#!/usr/bin/env bash
+
+### BEGIN INIT INFO
+# Provides:          k3s
+# Required-Start:    $network $remote_fs $syslog
+# Required-Stop:     $network $remote_fs $syslog
+# Default-Start:     2 3 4 5
+# Default-Stop:      0 1 6
+# Short-Description: Lightweight Kubernetes Distribution
+### END INIT INFO
+
+PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin
+
+BASE=k3s
+DAEMON_DIR=/usr/bin
+DAEMON="$BASE server"
+PID=/var/run/$BASE.pid
+SOCK=/run/k3s/containerd/containerd.sock
+ENVFILE=/etc/rancher/$BASE/$BASE.service.env
+
+# Load environment variables
+[ -r $ENVFILE ] && . $ENVFILE
+
+do_start() {
+    # Load kernel modules
+    /sbin/modprobe br_netfilter || true
+    /sbin/modprobe overlay || true
+
+    $DAEMON_DIR/$DAEMON > /dev/null 2>&1 &
+    pidof "$DAEMON" > $PID
+
+    sleep 7
+    if [ -f $PID ]; then
+        echo "$BASE has started."
+    else
+        echo "$BASE failed to start. Please restart the daemon."
+    fi
+}
+
+do_stop() {
+    if [ -f $PID ]; then
+        echo "Stopping $BASE.."
+        kill $(ps aux | grep "$SOCK" | awk '{print $2}') \
+             $(cat $PID) > /dev/null 2>&1
+        sleep 2
+        ip link delete flannel.1 > /dev/null 2>&1
+        rm -f $PID
+        echo "$BASE has stopped."
+    else
+        killall "$DAEMON" > /dev/null 2>&1 || echo "$BASE is not running."
+    fi
+}
+
+do_restart() {
+    do_stop > /dev/null
+    do_start > /dev/null
+    echo "$BASE has restarted."
+}
+
+do_stat() {
+    if [ -s $PID ]; then
+        echo "$BASE is running: $(cat $PID)"
+    else
+        echo "$BASE is not running."
+    fi
+}
+
+case "$1" in
+    start)
+        echo "Starting $BASE.."
+        do_start
+        ;;
+    stop)
+        do_stop
+        ;;
+    killall)
+        # This option is merged from killall script, good idea to have it here!
+        echo "Stopping $BASE and cleaning up resources.."
+        if [ ! -f $PID ]; then
+            do_start > /dev/null
+        fi
+        sleep 5
+        pschildren() {
+            ps -e -o ppid= -o pid= | \
+            sed -e 's/^\s*//g; s/\s\s*/\t/g;' | \
+            grep -w "^$1" | \
+            cut -f2
+        }
+        pstree() {
+            for pid in $@; do
+                echo $pid
+                for child in $(pschildren $pid); do
+                    pstree $child
+                done
+            done
+        }
+        killtree() {
+            kill -9 $(
+                { set +x; } 2>/dev/null;
+                pstree $@;
+                set -x;
+            ) 2>/dev/null
+        }
+        getshims() {
+            ps -e -o pid= -o args= | sed -e 's/^ *//; s/\s\s*/\t/;' | grep -w 'k3s/data/[^/]*/bin/containerd-shim' | cut -f1
+        }
+        killtree $({ set +x; } 2>/dev/null; getshims; set -x)
+        do_unmount_and_remove() {
+            awk -v path="$1" '$2 ~ ("^" path) { print $2 }' /proc/self/mounts | sort -r | xargs -r -t -n 1 sh -c 'umount "$0" && rm -rf "$0"'
+        }
+        sleep 2
+        do_unmount_and_remove '/run/k3s'
+        do_unmount_and_remove '/var/lib/rancher/k3s'
+        do_unmount_and_remove '/var/lib/kubelet/pods'
+        do_unmount_and_remove '/run/netns/cni-'
+        ip netns show 2>/dev/null | grep cni- | xargs -r -t -n 1 ip netns delete
+        ip link show 2>/dev/null | grep 'master cni0' | while read ignore iface ignore; do
+            iface=${iface%%@*}
+            [ -z "$iface" ] || ip link delete $iface
+        done
+        ip link delete cni0
+        ip link delete flannel.1
+        rm -rf /var/lib/cni/
+        iptables-save | grep -v 'KUBE-\|CNI-' | iptables-restore
+        do_stop > /dev/null
+        echo "Done."
+        ;;
+    status)
+        do_stat
+        ;;
+    restart)
+        echo "Restarting $BASE.."
+        do_restart
+        ;;
+    *)
+        echo "Usage: $0 {start|stop|killall|status|restart}" >&2
+        exit 1
+        ;;
+esac
\ No newline at end of file
diff --git a/system/k3s/doinst.sh b/system/k3s/doinst.sh
new file mode 100644
index 0000000000000..05261ffff7330
--- /dev/null
+++ b/system/k3s/doinst.sh
@@ -0,0 +1,18 @@
+config() {
+  NEW="$1"
+  OLD="$(dirname $NEW)/$(basename $NEW .new)"
+  # If there's no config file by that name, mv it over:
+  if [ ! -r $OLD ]; then
+    mv $NEW $OLD
+  elif [ "$(cat $OLD | md5sum)" = "$(cat $NEW | md5sum)" ]; then
+    # toss the redundant copy
+    rm $NEW
+  fi
+  # Otherwise, we leave the .new copy for the admin to consider...
+}
+
+config etc/rancher/k3s/k3s.service.env.new
+
+if [ -x /etc/rc.d/rc.k3s ]; then
+    /etc/rc.d/rc.k3s restart > /dev/null
+fi
diff --git a/system/k3s/k3s.SlackBuild b/system/k3s/k3s.SlackBuild
new file mode 100644
index 0000000000000..02bd7a072d96c
--- /dev/null
+++ b/system/k3s/k3s.SlackBuild
@@ -0,0 +1,100 @@
+#!/bin/bash
+
+# Slackware build script for K3S
+
+# Copyright 2019-2024 Pouria Rezaei <Pouria.rz@outlook.com>
+# All rights reserved.
+#
+# Redistribution and use of this script, with or without modification, is
+# permitted provided that the following conditions are met:
+#
+# 1. Redistributions of this script must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+#
+#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
+#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
+#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+cd $(dirname $0) ; CWD=$(pwd)
+
+PRGNAM=k3s
+VERSION=${VERSION:-1.30.0}
+BUILD=${BUILD:-1}
+TAG=${TAG:-_SBo}
+PKGTYPE=${PKGTYPE:-tgz}
+
+if [ -z "$ARCH" ]; then
+  case "$( uname -m )" in
+    i?86) ARCH=i586 ;;
+    arm*) ARCH=arm ;;
+       *) ARCH=$( uname -m ) ;;
+  esac
+fi
+
+if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
+  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
+  exit 0
+fi
+
+TMP=${TMP:-/tmp/SBo}
+PKG=$TMP/package-$PRGNAM
+OUTPUT=${OUTPUT:-/tmp}
+
+set -e
+
+if [ "$ARCH" = "i586" ]; then
+  DEBARCH="i386"
+elif [ "$ARCH" = "i686" ]; then
+  DEBARCH="i386"
+elif [ "$ARCH" = "x86_64" ]; then
+  DEBARCH="amd64"
+else
+  echo "Package for $ARCH architecture is not available."
+  exit 1
+fi
+
+rm -rf $PKG
+mkdir -p $TMP $PKG $OUTPUT
+cd $TMP
+rm -rf $PRGNAM-$VERSION
+mkdir -p $PRGNAM-$VERSION
+
+cd $PKG
+
+mkdir -p usr/bin
+install -m 0755 $CWD/$PRGNAM usr/bin/$PRGNAM
+
+mkdir -p etc/rc.d
+install -m 0644 $CWD/config/rc.k3s etc/rc.d/rc.k3s
+
+mkdir -p etc/rancher/$PRGNAM
+install -m 0644 $CWD/config/k3s.service.env etc/rancher/k3s/k3s.service.env.new
+
+chown -R root:root .
+find -L . \
+\( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
+-o -perm 511 \) -exec chmod 755 {} \; -o \
+\( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
+-o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
+
+for symlink in kubectl crictl ctr; do
+    ln -sf /usr/bin/k3s usr/bin/$symlink
+done
+
+rm -rf usr/share/doc
+mkdir -p usr/doc/$PRGNAM-$VERSION
+cat $CWD/$PRGNAM.SlackBuild > usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
+
+mkdir -p install
+cat $CWD/slack-desc > install/slack-desc
+cat $CWD/doinst.sh > install/doinst.sh
+
+cd $PKG
+/sbin/makepkg -l y -p -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE
diff --git a/system/k3s/k3s.info b/system/k3s/k3s.info
new file mode 100644
index 0000000000000..5a91c9ccd6437
--- /dev/null
+++ b/system/k3s/k3s.info
@@ -0,0 +1,10 @@
+PRGNAM="k3s"
+VERSION="1.30.0"
+HOMEPAGE="https://k3s.io/"
+DOWNLOAD="UNSUPPORTED"
+MD5SUM=""
+DOWNLOAD_x86_64="https://github.com/k3s-io/k3s/releases/download/v1.30.0+k3s1/k3s"
+MD5SUM_x86_64="0cada93485b76e3159cf6456248f09dc"
+REQUIRES=""
+MAINTAINER="Pouria Rezaei"
+EMAIL="Pouria.rz@outlook.com"
diff --git a/system/k3s/slack-desc b/system/k3s/slack-desc
new file mode 100644
index 0000000000000..c25d7b819d610
--- /dev/null
+++ b/system/k3s/slack-desc
@@ -0,0 +1,19 @@
+# HOW TO EDIT THIS FILE:
+# The "handy ruler" below makes it easier to edit a package description.
+# Line up the first '|' above the ':' following the base package name, and
+# the '|' on the right side marks the last column you can put a character in.
+# You must make exactly 11 lines for the formatting to be correct.  It's also
+# customary to leave one space after the ':' except on otherwise blank lines.
+
+   |-----handy-ruler------------------------------------------------------|
+k3s: k3s (Lightweight Kubernetes Distribution)
+k3s:
+k3s: k3s is a lightweight, fully compliant Kubernetes distribution designed
+k3s: for constrained environments such as edge computing, IoT devices, and
+k3s: development setups. Created by Rancher Labs, k3s aims to simplify the
+k3s: deployment and management of Kubernetes clusters.
+k3s:
+k3s:
+k3s: URL: https://k3s.io/
+k3s:
+k3s: